My evakool has been running for 2 days straight in the back of my car and the battery is still fine, I have it set on 2 degrees and every time I have looked at it it's been on 0 or 1 I figure if I upgrade my battery to a very good one like optima yellow top it will be fine
The fridge I got is here
60L EvaKool TravelMate 12v 24v Portable Camping Fridge Freezer cooler car boat | eBay

